SCHEDULE III - CONDENSED SUPPLEMENTARY INSURANCE INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplementary Insurance Information, by Segment [Line Items]
DAC and VOBA	$ 6,081	$ 5,812	$ 7,694
Future Contract Benefits	41,030	40,814	36,420
Unearned Premiums
Other Contract Holder Funds	111,702	105,405	98,018
Insurance Premiums	5,617	5,372	5,513
Net Investment Income	6,115	5,510	5,223
Benefits and Interest Credited	11,444	11,600	10,660
Amortization of DAC and VOBA	1,634	1,294	1,368
Other Operating Expenses	4,522	4,138	4,352
Premiums Written
Annuities Segment [Member]
Supplementary Insurance Information, by Segment [Line Items]
DAC and VOBA	4,086	3,782	3,790
Future Contract Benefits	4,181	4,183	3,862
Unearned Premiums
Other Contract Holder Funds	41,619	35,218	29,493
Insurance Premiums	116	121	502
Net Investment Income	1,401	1,272	1,140
Benefits and Interest Credited	1,091	1,245	1,248
Amortization of DAC and VOBA	465	365	452
Other Operating Expenses	1,677	1,467	1,463
Premiums Written
Retirement Plan Services Segment [Member]
Supplementary Insurance Information, by Segment [Line Items]
DAC and VOBA	152	120	176
Future Contract Benefits	15	11	9
Unearned Premiums
Other Contract Holder Funds	23,635	22,912	20,553
Net Investment Income	992	933	924
Benefits and Interest Credited	620	617	587
Amortization of DAC and VOBA	32	29	26
Other Operating Expenses	388	375	392
Premiums Written
Life Insurance Segment [Member]
Supplementary Insurance Information, by Segment [Line Items]
DAC and VOBA	1,672	1,723	3,519
Future Contract Benefits	20,389	20,127	16,249
Unearned Premiums
Other Contract Holder Funds	39,717	39,797	39,941
Insurance Premiums	1,033	950	885
Net Investment Income	3,209	2,823	2,658
Benefits and Interest Credited	5,714	6,077	5,616
Amortization of DAC and VOBA	1,030	786	779
Other Operating Expenses	735	720	737
Premiums Written
Group Protection Segment [Member]
Supplementary Insurance Information, by Segment [Line Items]
DAC and VOBA	171	187	209
Future Contract Benefits	6,326	5,986	5,601
Unearned Premiums
Other Contract Holder Funds	214	213	194
Insurance Premiums	4,450	4,280	4,113
Net Investment Income	366	330	307
Benefits and Interest Credited	3,896	3,505	3,041
Amortization of DAC and VOBA	107	114	111
Other Operating Expenses	1,154	1,120	1,134
Premiums Written
Other Operations [Member]
Supplementary Insurance Information, by Segment [Line Items]
Future Contract Benefits	10,119	10,507	10,699
Unearned Premiums
Other Contract Holder Funds	6,517	7,265	7,837
Insurance Premiums	18	21	13
Net Investment Income	147	152	194
Benefits and Interest Credited	123	156	168
Other Operating Expenses	568	456	626
Premiums Written